Are these Rhode Island Reds

So I bought some chicks from Tractor Suply a few weeks ago. When we asked what breed they were the women working said she though they were Red Rangers. She didn't seem like she knew what she was talking about and she was very young. Now that they're getting bigger they're starting to look more like RI Reds since they are very dark in color and have a white line going down their chest. I searched images of Red Rangers and they are a lot lighter and don't have the line going down their chest. Do you guys have any opinions? [/IMG][/IMG][/IMG]